63dc02bde6
Everything is using sparseirq these days, so we have no need to arbitrarily size nr_irqs ahead of time. The legacy IRQ pre-allocation likewise has no meaning for us, so that's killed off too. We now depend on nr_irqs expansion by the generic hardirq layer instead. It's also worth noting that the majority of boards had completely bogus values for their nr_irqs relative to their CPU and configurations, so this ends up correcting behaviour for quite a few platforms. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
72 lines
1.6 KiB
C
72 lines
1.6 KiB
C
#ifndef __ASM_SH_IRQ_H
|
|
#define __ASM_SH_IRQ_H
|
|
|
|
#include <linux/cpumask.h>
|
|
#include <asm/machvec.h>
|
|
|
|
/*
|
|
* Only legacy non-sparseirq platforms have to set a reasonably sane
|
|
* value here. sparseirq platforms allocate their irq_descs on the fly,
|
|
* so will expand automatically based on the number of registered IRQs.
|
|
*/
|
|
#ifdef CONFIG_SPARSE_IRQ
|
|
# define NR_IRQS 8
|
|
#else
|
|
# define NR_IRQS 512
|
|
#endif
|
|
|
|
/*
|
|
* This is a special IRQ number for indicating that no IRQ has been
|
|
* triggered and to simply ignore the IRQ dispatch. This is a special
|
|
* case that can happen with IRQ auto-distribution when multiple CPUs
|
|
* are woken up and signalled in parallel.
|
|
*/
|
|
#define NO_IRQ_IGNORE ((unsigned int)-1)
|
|
|
|
/*
|
|
* Simple Mask Register Support
|
|
*/
|
|
extern void make_maskreg_irq(unsigned int irq);
|
|
extern unsigned short *irq_mask_register;
|
|
|
|
/*
|
|
* PINT IRQs
|
|
*/
|
|
void init_IRQ_pint(void);
|
|
void make_imask_irq(unsigned int irq);
|
|
|
|
static inline int generic_irq_demux(int irq)
|
|
{
|
|
return irq;
|
|
}
|
|
|
|
#define irq_demux(irq) sh_mv.mv_irq_demux(irq)
|
|
|
|
void init_IRQ(void);
|
|
void migrate_irqs(void);
|
|
|
|
asmlinkage int do_IRQ(unsigned int irq, struct pt_regs *regs);
|
|
|
|
#ifdef CONFIG_IRQSTACKS
|
|
extern void irq_ctx_init(int cpu);
|
|
extern void irq_ctx_exit(int cpu);
|
|
# define __ARCH_HAS_DO_SOFTIRQ
|
|
#else
|
|
# define irq_ctx_init(cpu) do { } while (0)
|
|
# define irq_ctx_exit(cpu) do { } while (0)
|
|
#endif
|
|
|
|
#ifdef CONFIG_INTC_BALANCING
|
|
extern unsigned int irq_lookup(unsigned int irq);
|
|
extern void irq_finish(unsigned int irq);
|
|
#else
|
|
#define irq_lookup(irq) (irq)
|
|
#define irq_finish(irq) do { } while (0)
|
|
#endif
|
|
|
|
#include <asm-generic/irq.h>
|
|
#ifdef CONFIG_CPU_SH5
|
|
#include <cpu/irq.h>
|
|
#endif
|
|
|
|
#endif /* __ASM_SH_IRQ_H */
|